Codex app (and IDE) review should offer a session-wide cumulative diff, not only latest-turn changes

What variant of Codex are you using?

IDE, App

What feature would you like to see?

Summary

In the Codex desktop app (IDE ext), iterative review loops become hard to audit because the
change review surface appears to show only the changes from the latest response
after review feedback is submitted.

When a session has several review rounds, the user loses the ability to inspect
the full set of changes made across the session. The visible review surface
contains only the second-round or latest-round edits, so it is difficult to
understand what was changed overall and what remains from earlier rounds.

Of course, it's possible to use the IDE features to review the overall changes. but it's very useful to use the embedded codex comments to send feedback immediately to the chat session

Additional information

_No response_